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春季是林业、果树、花卉以及多种蔬菜播种、扦插等育苗的有利时机。播种扦插前进行苗圃地土壤消毒,可有效的消灭土壤中的病菌,减少土传病的机会,对确保所育苗木的安全生长,可以起到事半功倍的良好效果。常用的消毒方法有以下五种:一、五氯硝基苯消毒法:每平方米苗圃地用75%五氯硝基苯4克、代森锌5克,两药混合后。再与12公斤细土拌均。播种时下垫上盖。此法对由土壤传播的炭疽病、立枯病、猝倒病、菌核病的防治有特效。二、福尔马林消毒法:每平方米苗圃地用福尔马林50毫克加水10公斤均匀地喷洒在地表,然后用草袋
Spring is a favorable opportunity for forestry, fruit trees, flowers and a variety of vegetables planting, cutting and other nursery. Sowing cuttings before nursery soil disinfection, which can effectively eliminate bacteria in the soil, reduce the chance of soil-borne disease, to ensure the safe growth of nursery stock, can play a multiplier effect with good results. Commonly used disinfection methods are the following five: First, the pentachloronitrobenzene disinfection method: per square meter of nursery ground with 75% of five chlorine nitrobenzene 4 grams, 5 grams of dexamethasone zinc, after mixing two drugs. Then mixed with 12 kg of fine soil. Under cover when sowing. This method of soil-borne anthrax, blight, damping-off disease, sclerotinia prevention and treatment have special effects. Second, formalin disinfection: square meters of nursery with formalin 50 mg water 10 kg evenly sprayed on the surface, and then straw bag